A toy top has a mass of ____. How many ___ are in this spinning top, given that the average atomic mass of copper is ____? Starting amount.
a) Protons; atoms; 63.55 g/mol
b) Electrons; molecules; 55.85 g/mol
c) Neutrons; ions; 28.09 g/mol
d) Atoms; ions; 63.55 g/mol